MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The document contains numerous links, many pointing to compromised CMS uploads or disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The presence of a 'Callback phishing phone lure' heuristic further supports the idea that the document is intended to trick users into interacting with malicious content or services.
Machine Learning
- Nyx PDF Classifier malicious score 0.9833
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL https://infrive.ru/uplcv?utm_term=texas+drivers+license+written+test+manual PDF link annotation
- http://factblogs.com/uploaded_files/userfiles/files/72687924170.pdfIn PDF document text
- http://victorylimo1.com/wp-content/plugins/formcraft/file-upload/server/content/files/160849cdf6e50e---wenavamuverigapigaga.pdfIn PDF document text
- http://tincorner.vn/uploads/files/30213672317.pdfIn PDF document text
- http://gernano.eu/gfx/userfiles/files/joserusirejegafavoloj.pdfIn PDF document text
- https://pottoka.info/files/galeria/files/susugixosun.pdfIn PDF document text
- https://orkhaconstruction.com/wp-content/plugins/super-forms/uploads/php/files/tla99bbqgpb9o12otjquduisne/78782166878.pdfIn PDF document text
- https://eyescare.vn/app/webroot/upload/ckfinder/files/51733661298.pdfIn PDF document text
- http://springbook.no/files/17581885811.pdfIn PDF document text
- http://etkenkalip.com/CodeignterProject/vizyon/files/94196759980.pdfIn PDF document text
- http://tchid.net/userfiles/file/kugunopebarin.pdfIn PDF document text
- https://www.golddustdental.com/wp-content/plugins/formcraft/file-upload/server/content/files/16095ce1de115b---3740616119.pdfIn PDF document text
- https://advancedcheckcashadvance.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b67c1825eef---84680113471.pdfIn PDF document text
- http://elsekmont.eu/userfiles/file/6217101414.pdfIn PDF document text
- http://paroissedementon.fr/upload/files/telazobawokukusiritaw.pdfIn PDF document text
- http://www.motionmantra.com/userfiles/files/53114046562.pdfIn PDF document text
- https://seeandhearbetter.ie/img/shop//contents/ludugexokibonatexilamu.pdfIn PDF document text
- http://www.holzbau-hoelzl.at/wp-content/plugins/formcraft/file-upload/server/content/files/160864dfa652bd---76953983058.pdfIn PDF document text
- https://www.puskinas.lt/ckfinder/userfiles/files/vilixidapef.pdfIn PDF document text
- http://a-range.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1607e57db7e16e---vepekuxadutore.pdfIn PDF document text
- https://fivetc.vn/uploads/files/30203880914.pdfIn PDF document text
- http://romanakladatelstvi.cz/userfiles/file/binagivagufefumatubemot.pdfIn PDF document text
- http://csc0516.com/userfiles/file/20210801235809_cmnv1v.pdfIn PDF document text
- https://www.emmabowman.com/wp-content/plugins/super-forms/uploads/php/files/77fcbe5d3fa160b417d963c71ff9143e/6157395459.pdfIn PDF document text
- http://viettelhaiphong.me/data/dulieu/files/resiwovukaragagivol.pdfIn PDF document text
- https://www.cedicar.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609a99a4b7892---gorexutasivudiromupuvi.pdfIn PDF document text
- https://pilotcenter.gr/wp-content/plugins/super-forms/uploads/php/files/ond5un2s1a0po2c26l167255s9/xadusati.pdfIn PDF document text
- http://adabaskimerkezi.com/upload/file/livenomatotegodekemasofag.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d56d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD56D | 10728 bytes |
SHA-256: 9e10f8b98d2c74502dc916d58682376d1f6b0fd7f80a3a918cc384337bf0b00a |
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font_01_sfnt_off0000ee1d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE1D | 17624 bytes |
SHA-256: 96edd552aa2ab871fb336d11541e88b638218a086458fac506590605b822efe3 |
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font_02_sfnt_off00011c40.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11C40 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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